📄 scrollbar.lst
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C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 1
C51 COMPILER V8.05a, COMPILATION OF MODULE SCROLLBAR
OBJECT MODULE PLACED IN Scrollbar.obj
COMPILER INVOKED BY: D:\Program Files\keil\C51\BIN\C51.EXE gui\Widget\Scrollbar.c LARGE BROWSE MDU_F120 DEBUG OBJECTEXTE
-ND PRINT(.\Scrollbar.lst) OBJECT(Scrollbar.obj)
line level source
1 /*
2 *********************************************************************************************************
3 * uC/GUI
4 * Universal graphic software for embedded applications
5 *
6 * (c) Copyright 2002, Micrium Inc., Weston, FL
7 * (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
8 *
9 * 礐/GUI is protected by international copyright laws. Knowledge of the
10 * source code may not be used to write a similar product. This file may
11 * only be used in accordance with a license and should not be redistributed
12 * in any way. We appreciate your understanding and fairness.
13 *
14 ----------------------------------------------------------------------
15 File : SCROLLBAR.c
16 Purpose : SCROLLBAR for new emWin GSC widgets
17 ---------------------------END-OF-HEADER------------------------------
18 */
19
20 #include <stdlib.h>
21 #include <string.h>
22 #include "gui\Core\GUI_Private.h"
23 #include "SCROLLBAR.h"
24 #include "Widget.h"
25
26
27 #if GUI_WINSUPPORT
/*********************************************************************
*
* Private config defaults
*
**********************************************************************
*/
/* Support for 3D effects */
#ifndef SCROLLBAR_USE_3D
#define SCROLLBAR_USE_3D 1
#endif
/* Define colors */
#ifndef SCROLLBAR_BKCOLOR0_DEFAULT
#define SCROLLBAR_BKCOLOR0_DEFAULT 0x808080
#endif
#ifndef SCROLLBAR_BKCOLOR1_DEFAULT
#define SCROLLBAR_BKCOLOR1_DEFAULT GUI_BLACK
#endif
#ifndef SCROLLBAR_COLOR0_DEFAULT
#define SCROLLBAR_COLOR0_DEFAULT 0xc0c0c0
#endif
#ifndef SCROLLBAR_COLOR1_DEFAULT
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 2
#define SCROLLBAR_COLOR1_DEFAULT GUI_BLACK
#endif
/*********************************************************************
*
* Object definition
*
**********************************************************************
*/
typedef struct {
WIDGET Widget;
GUI_COLOR aBkColor[2];
GUI_COLOR aColor[2];
int NumItems, v, PageSize;
#if GUI_DEBUG_LEVEL >1
int DebugId;
#endif
} SCROLLBAR_Obj;
typedef struct {
int x1_LeftArrow;
int x0_Thumb;
int x1_Thumb;
int x0_RightArrow;
int xSizeMoveable;
int ThumbSize;
} POSITIONS;
/*********************************************************************
*
* Static data
*
**********************************************************************
*/
I16 _DefaultWidth = 11;
/*********************************************************************
*
* Macros for internal use
*
**********************************************************************
*/
#define SCROLLBAR_ID 0x4544 /* Magic numer, should be unique if possible */
#define SCROLLBAR_H2P(h) (SCROLLBAR_Obj*) WM_H2P(h)
#ifdef _DEBUG
#define SCROLLBAR_ASSERT_IS_VALID_PTR(p) DEBUG_ERROROUT_IF(p->DebugId != SCROLLBAR_ID, "xxx.c: Wrong han
-dle type or Object not init'ed")
#define SCROLLBAR_INIT_ID(p) p->DebugId = SCROLLBAR_ID
#define SCROLLBAR_DEINIT_ID(p) p->DebugId = SCROLLBAR_ID+1
#else
#define SCROLLBAR_ASSERT_IS_VALID_PTR(p)
#define SCROLLBAR_INIT_ID(p)
#define SCROLLBAR_DEINIT_ID(p)
#endif
/*********************************************************************
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 3
*
* Static routines
*
**********************************************************************
*/
static int _GetArrowSize(SCROLLBAR_Obj* pObj) {
unsigned int r;
unsigned int xSize = WIDGET__GetXSize(&pObj->Widget);
unsigned int ySize = WIDGET__GetYSize(&pObj->Widget);
r = ySize/2 + 5;
if (r > xSize-5)
r = xSize-5;
return r;
}
/*********************************************************************
*
* _GetPositions
Calculates all positions required for drawing or for mouse / touch
evaluation.
*/
static void _GetPositions(SCROLLBAR_Obj* pObj, POSITIONS* pPos) {
int xSizeArrow, xSize, xSizeMoveable, ThumbSize, NumItems, xSizeThumbArea;
NumItems = pObj->NumItems;
xSize = WIDGET__GetXSize(&pObj->Widget);
xSizeArrow = _GetArrowSize(pObj);
xSizeThumbArea= xSize - 2*xSizeArrow; /* Number of pixels available for thumb and movement */
ThumbSize = GUI__DivideRound(xSizeThumbArea * pObj->PageSize, NumItems);
if (ThumbSize < 4)
ThumbSize = 4;
xSizeMoveable = xSizeThumbArea - ThumbSize;
pPos->x1_LeftArrow = xSizeArrow-1;
pPos->x0_RightArrow = xSize - xSizeArrow;
pPos->x0_Thumb = pPos->x1_LeftArrow + 1+ GUI__DivideRound(xSizeMoveable * pObj->v, NumItems - pObj-
->PageSize);
pPos->x1_Thumb = pPos->x0_Thumb + ThumbSize - 1;
pPos->xSizeMoveable = xSizeMoveable;
pPos->ThumbSize = ThumbSize;
}
/*********************************************************************
*
* _DrawTriangle
*/
static void _DrawTriangle(WIDGET* pWidget, int x, int y, int Size, int Inc) {
if (pWidget->State & WIDGET_STATE_VERTICAL) {
for (; Size >= 0; Size--, x += Inc) {
GUI_DrawHLine(x, y - Size, y + Size);
}
} else {
for (; Size >= 0; Size--, x += Inc) {
GUI_DrawVLine(x, y - Size, y + Size);
}
}
}
/*********************************************************************
*
* _Paint
*/
static void _Paint(SCROLLBAR_Obj* pObj) {
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 4
int xArrow, ArrowSize, ArrowOff;
POSITIONS Pos;
GUI_RECT r, rClient;
/*
Get / calc position info
*/
_GetPositions(pObj, &Pos);
xArrow = _GetArrowSize(pObj);
WIDGET__GetClientRect(&pObj->Widget, &rClient);
r = rClient;
ArrowSize = ((r.y1 - r.y0) /3) - 1;
/*
Draw the thumb area ( optimized ... We could also fill using GUI_Clear())
*/
GUI_SetColor(pObj->aBkColor[0]);
r = rClient;
r.x0 = Pos.x1_LeftArrow + 1;
r.x1 = Pos.x0_Thumb - 1;
WIDGET__FillRectEx(&pObj->Widget, &r);
r.x0 = Pos.x1_Thumb + 1;
r.x1 = Pos.x0_RightArrow - 1;
WIDGET__FillRectEx(&pObj->Widget, &r);
/*
Draw left Arrow
*/
ArrowOff = 3 + ArrowSize+ ArrowSize/3;
GUI_SetColor(pObj->aColor[0]);
r = rClient;
r.x1 = xArrow-1;
WIDGET__FillRectEx(&pObj->Widget, &r);
GUI_SetColor(pObj->aBkColor[1]);
_DrawTriangle(&pObj->Widget, r.x0 + ArrowOff, (r.y1 - r.y0) >> 1, ArrowSize, -1);
WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &r);
/*
Draw right Arrow
*/
GUI_SetColor(pObj->aColor[0]);
r = rClient;
r.x0 = r.x1 - (xArrow - 1);
WIDGET__FillRectEx(&pObj->Widget, &r);
GUI_SetColor(pObj->aBkColor[1]);
_DrawTriangle(&pObj->Widget, r.x1 - ArrowOff, (r.y1 - r.y0) >> 1, ArrowSize, 1);
WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &r);
/*
Draw Thumb
*/
r = rClient;
r.x0 = Pos.x0_Thumb;
r.x1 = Pos.x1_Thumb;
GUI_SetColor(pObj->aColor[0]);
WIDGET__FillRectEx(&pObj->Widget, &r);
WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &r);
}
/*********************************************************************
*
* _OnTouch
*/
static void _OnTouch(SCROLLBAR_Handle hObj, SCROLLBAR_Obj* pObj, WM_MESSAGE*pMsg) {
POSITIONS Pos;
GUI_TOUCH_tState* pState = (GUI_TOUCH_tState*)pMsg->Data.p;
C51 COMPILER V8.05a SCROLLBAR 04/11/2008 14:19:38 PAGE 5
if (pMsg->Data.p) { /* Something happened in our area (pressed or released) */
if (pState->Pressed) {
int Sel;
int Range;
int x;
Sel = pObj->v;
_GetPositions(pObj, &Pos);
Range = pObj->NumItems - pObj->PageSize;
/* Swap mouse coordinates if necessary */
if (pObj->Widget.State & WIDGET_STATE_VERTICAL) {
int t = pState->x;
pState->x = pState->y;
pState->y = t;
}
x = pState->x;
if (x <= Pos.x1_LeftArrow) { /* left arrow (line left) */
Sel--;
} else if (x < Pos.x0_Thumb) { /* left area (page left) */
Sel -= pObj->PageSize;
} else if (x <= Pos.x1_Thumb) { /* Thumb area */
if (Pos.xSizeMoveable > 0) {
x = x - Pos.ThumbSize/2 - Pos.x1_LeftArrow-1;
Sel = GUI__DivideRound(Range * x, Pos.xSizeMoveable);
}
} else if (x < Pos.x0_RightArrow) { /* right area (page right) */
Sel += pObj->PageSize;
} else {
Sel++;
}
/* WM_SetFocus(hObj); */
WM_SetCapture(hObj, 1);
SCROLLBAR_SetValue(hObj, Sel);
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